Ciao,
here some pictures of the 3 buildings I scratchbuilt.
Maybe in the future I'll write a brief tutorial, but their construction was very easy indeed.
The walls are 3mm balsa wood, scored with a pencil.
Take care that the horizontal lines don't have to continue on the contiguous wall, but have to be shifted half way up or down to obtain the overlapping effect in the corners!!
The stone basement and fireplace is Depron again scored with a pencil.
The only "difficult" part was the overlapping of the wooden boards at the corners.
I obtained them by prolonging the lateral sides of the long walls, and then I built the "prolongings" of the short walls with short lenghts of balsa strip.
The beautiful roofs... well, they're another masterpiece of our common friend Jack (Sangennaru on this forum - ciao Jack!

).
He casted them in resin and I had only to paint them.
I started with a dark brown, heavily drybrushed with several coats of light to very light grey.






After the houses I started to built several wood elements based on old CDs.
I started from a lot of very cheap but nice trees bought on Ebay from a Chinese seller of model railroad accessories.
As you can see, the original green was... well.. too
GREEEN!!! 

so I tuned it down with some light sprays of green, brown and ocra.

Tomorrow I hope I'll find the time to prepare a mash of sand, white glue, green and brown paints and plaster and I'll start to cover the bases.
See you soon!!
Marco